Magnetic Film Patterning for Display Pixel Purity
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Solution Overview
Problem
Current methods for patterning films in display technology, such as etching and transferring, often result in material residue affecting pixel purity and display effect, and are complex and cumbersome.
Innovation Solution
A method involving a magnetic substrate with a magnetic material pattern on a flexible substrate, where a film is patterned by applying a magnetic field to push the film onto a rigid substrate, allowing for precise pattern formation without direct contact and simplifying the process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If etching is used for patterning film, then the film can be patterned, but material residue is generated affecting pixel purity
Solution Approach 1:
The patent replaces the chemical etching process with a magnetic field-based mechanical pushing system. A magnetic substrate with magnetic material patterns generates magnetic forces that physically push the film material to form patterns, eliminating chemical reactions and material residue generation while achieving precise pattern transfer.
Solution Approach 2:
The patent introduces a magnetic substrate as an intermediary carrier between the patterning source and the film. The magnetic substrate contains magnetic material patterns that generate magnetic fields to push the film, serving as a non-contact intermediary that transfers the pattern without direct material contact or chemical interaction.
2Manufacturing precision
If transferring method is used for patterning film, then the film can be patterned, but the process steps are numerous and operation is complex
Solution Approach 1:
The patent combines multiple patterning steps into a single magnetic field-based operation. Instead of separate steps for alignment, exposure, development, and etching, the magnetic substrate directly pushes the film material in one action, merging multiple complex processes into a simple, unified operation.
Solution Approach 2:
The magnetic substrate is designed to automatically generate the required magnetic field distribution when placed on the film, eliminating the need for complex external alignment and control systems. The magnetic material patterns inherently create the field configuration needed for precise pattern formation without additional operational complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This method achieves high-quality patterned films with improved pixel purity and display effects, reducing complexity and material residue, and is easily implementable in industrial production.
Implementation Method 1
pushing a portion of the film to be processed corresponding to the magnetic material pattern to project towards and to attach onto the first rigid substrate, by the magnetic material pattern via a magnetic effect of a magnetic force of a magnetic field which is applied onto the magnetic substrate
Data Source
AI summary
A method of patterning a film, a display device and a method for preparing the same. The method of patterning a film includes preparing a magnetic substrate by forming a magnetic material pattern within a flexible substrate; disposing a film to be processed and a first rigid substrate opposite to and spaced apart from each other, and placing the magnetic substrate against a surface of the film to be processed at a side thereof facing away from the first rigid substrate; pushing a portion of the film to be processed corresponding to the magnetic material pattern to project towards and to attach onto the first rigid substrate, by the magnetic material pattern via a magnetic effect of a magnetic force of a magnetic field which is applied onto the magnetic substrate; and forming a patterned film on the first rigid substrate.